Over one lakh people have applied for a one-way trip to Mars, as a part of the ambitious $6 bn dollar project that aims to colonise the Red planet starting in 2022. Here are 10 things you should know before you decide to travel to Mars.
A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. A spirometer measures ventilation, the movement of air into and out of the lungs. The spirogram will identify two different types of abnormal ventilation patterns, obstructive and restrictive.
The spirometer measures two areas; air flow and air volume. These areas and the numbers provided by the device, assist in diagnosing asthma and other respiratory ailments. When breathing occurs, small sacs deep in the lungs fill with air and expand.